Home / 28,747.48-43,118.19-7,689.65

Finding the Fourth Proportional to 28,747.48, 43,118.19 and 7,689.65

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Solution

The fourth proportional to 28,747.48, 43,118.19 and 7,689.65 is: 11,533.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,747.48 : 43,118.19 = 7,689.65 : x
  2. Step 2: Convert to fraction form
    28,747.48/43,118.19 = 7,689.65/x
  3. Step 3: Cross multiply
    28,747.48x = 43,118.19 × 7,689.65
  4. Step 4: Simplify right side
    28,747.48x = 331,563,649.41
  5. Step 5: Solve for x
    x = 331,563,649.41/28,747.48
  6. Step 6: Final answer
    x = 11,533.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.